Back-port #1411 to 6.x

build.bat

@@ -1,5 +1,5 @@
 @ECHO OFF
 set DOTNET_CLI_TELEMETRY_OPTOUT=1
-dotnet restore --verbosity=normal .\RabbitMQDotNetClient.sln
-dotnet run --verbosity=normal --framework net6.0 --project .\projects\Apigen\Apigen.csproj --apiName:AMQP_0_9_1 .\projects\specs\amqp0-9-1.stripped.xml .\gensrc\autogenerated-api-0-9-1.cs
-dotnet build --verbosity=normal .\RabbitMQDotNetClient.sln
+dotnet restore .\RabbitMQDotNetClient.sln
+dotnet run --framework net6.0 --project .\projects\Apigen\Apigen.csproj --apiName:AMQP_0_9_1 .\projects\specs\amqp0-9-1.stripped.xml .\gensrc\autogenerated-api-0-9-1.cs
+dotnet build .\RabbitMQDotNetClient.sln

projects/RabbitMQ.Client/RabbitMQ.Client.csproj

@@ -5,6 +5,8 @@
     <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <EnableTrimAnalyzer Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))">true</EnableTrimAnalyzer>
+    <IsTrimmable Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))">true</IsTrimmable>
     <AssemblyTitle>RabbitMQ Client Library for .NET</AssemblyTitle>
     <Authors>VMware</Authors>
     <Company>VMware, Inc. or its affiliates.</Company>

projects/RabbitMQ.Client/client/api/ICredentialsRefresher.cs

@@ -36,7 +36,7 @@
 
 namespace RabbitMQ.Client
 {
-    public delegate void NotifyCredentialRefreshed(bool succesfully);
+    public delegate void NotifyCredentialRefreshed(bool successfully);
 
     public interface ICredentialsRefresher
     {
@@ -54,10 +54,16 @@ public class TimerBasedCredentialRefresherEventSource : EventSource
         [Event(2)]
         public void Unregistered(string name) => WriteEvent(2, "UnRegistered", name);
         [Event(3)]
+#if NET6_0_OR_GREATER
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026:RequiresUnreferencedCode", Justification = "Parameters to this method are primitive and are trimmer safe")]
+#endif
         public void ScheduledTimer(string name, double interval) => WriteEvent(3, "ScheduledTimer", name, interval);
         [Event(4)]
         public void TriggeredTimer(string name) => WriteEvent(4, "TriggeredTimer", name);
         [Event(5)]
+#if NET6_0_OR_GREATER
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026:RequiresUnreferencedCode", Justification = "Parameters to this method are primitive and are trimmer safe")]
+#endif
         public void RefreshedCredentials(string name, bool succesfully) => WriteEvent(5, "RefreshedCredentials", name, succesfully);
         [Event(6)]
         public void AlreadyRegistered(string name) => WriteEvent(6, "AlreadyRegistered", name);

projects/RabbitMQ.Client/client/logging/RabbitMqClientEventSource.cs

@@ -34,64 +34,57 @@
 
 namespace RabbitMQ.Client.Logging
 {
-    [EventSource(Name="rabbitmq-dotnet-client")]
+    [EventSource(Name = "rabbitmq-dotnet-client")]
     public sealed class RabbitMqClientEventSource : EventSource
     {
         public class Keywords
         {
             public const EventKeywords Log = (EventKeywords)1;
         }
-#if NET452
-        public RabbitMqClientEventSource() : base()
-        {
 
-        }
-#else
         public RabbitMqClientEventSource() : base(EventSourceSettings.EtwSelfDescribingEventFormat)
         {
         }
-#endif
 
-        public static RabbitMqClientEventSource Log = new RabbitMqClientEventSource ();
+        public static RabbitMqClientEventSource Log = new RabbitMqClientEventSource();
 
         [Event(1, Message = "INFO", Keywords = Keywords.Log, Level = EventLevel.Informational)]
         public void Info(string message)
         {
-            if(IsEnabled())
+            if (IsEnabled())
                 WriteEvent(1, message);
         }
 
         [Event(2, Message = "WARN", Keywords = Keywords.Log, Level = EventLevel.Warning)]
         public void Warn(string message)
         {
-            if(IsEnabled())
+            if (IsEnabled())
                 WriteEvent(2, message);
         }
-#if NET452
+
         [Event(3, Message = "ERROR", Keywords = Keywords.Log, Level = EventLevel.Error)]
-        public void Error(string message, string detail)
+        public void Error(string message, RabbitMqExceptionDetail ex)
         {
-            if(IsEnabled())
-                this.WriteEvent(3, message, detail);
-        }
+            if (IsEnabled())
+            {
+#if NET6_0_OR_GREATER
+                WriteExceptionEvent(message, ex);
+
+                [UnconditionalSuppressMessage("Trimming", "IL2026", Justification = "The properties are preserved with the DynamicallyAccessedMembers attribute.")]
+                void WriteExceptionEvent<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicProperties)] T>(string message, T ex)
+                {
+                    WriteEvent(3, message, ex);
+                }
 #else
-        [Event(3, Message = "ERROR", Keywords = Keywords.Log, Level = EventLevel.Error)]
-        public void Error(string message,  RabbitMqExceptionDetail ex)
-        {
-            if(IsEnabled())
                 WriteEvent(3, message, ex);
-        }
 #endif
+            }
+        }
 
         [NonEvent]
         public void Error(string message, Exception ex)
         {
-
-#if NET452
-            Error(message, ex.ToString());
-#else
             Error(message, new RabbitMqExceptionDetail(ex));
-#endif
         }
     }
 }

projects/RabbitMQ.Client/client/logging/RabbitMqExceptionDetail.cs

@@ -46,7 +46,7 @@ public RabbitMqExceptionDetail(Exception ex)
             Type = ex.GetType().FullName;
             Message = ex.Message;
             StackTrace = ex.StackTrace;
-            if(ex.InnerException != null)
+            if (ex.InnerException != null)
             {
                 InnerException = ex.InnerException.ToString();
             }
@@ -63,6 +63,11 @@ public RabbitMqExceptionDetail(IDictionary<string, object> ex)
             }
         }
 
+
+        // NOTE: This type is used to write EventData in RabbitMqClientEventSource.Error. To make it trim-compatible, these properties are preserved
+        // in RabbitMqClientEventSource. If RabbitMqExceptionDetail gets a property that is a complex type, we need to ensure the nested properties are
+        // preserved as well.
+
         public string Type { get; private set; }
         public string Message { get; private set; }
         public string StackTrace { get; private set; }

projects/Unit/APIApproval.Approve.verified.txt

@@ -571,7 +571,7 @@ namespace RabbitMQ.Client
         System.Threading.Tasks.Task ConnectAsync(string host, int port);
         System.Net.Sockets.NetworkStream GetStream();
     }
-    public delegate void NotifyCredentialRefreshed(bool succesfully);
+    public delegate void NotifyCredentialRefreshed(bool successfully);
     public class PlainMechanism : RabbitMQ.Client.IAuthMechanism
     {
         public PlainMechanism() { }